We are excited to release the developer preview of the AWS SDK for Node.js. This SDK enables developers to tap into the cost-effective, scalable, and reliable AWS cloud from their Node.js applications. You can use the asynchronous, event-based JavaScript calling pattern to access data in Amazon DynamoDB and Amazon S3, to control Amazon EC2 instances, and to participate in Amazon SWF workflows. Since this is a developer preview release, we are also looking for feedback from the community to help shape the SDK design.